LCM for 70 and 140

"Least Common Multiple" Calculator

Least Common Multiple of

and

What's the Least Common Multiple (LCM) of 70 and 140?

Answer

LCM of 70 and 140 is 140

(One hundred forty)

Finding LCM for 70 and 140 using GCF of these numbers

The first method to find LCM for numbers 70 and 140 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 70 and 140 is 70, so

LCM = (70 × 140) ÷ 70

LCM = 9800 ÷ 70

LCM = 140

Finding LCM for 70 and 140 by Listing Multiples

The second method to find LCM for numbers 70 and 140 is to list out the common multiples for both numbers and pick the first one that matches:

Multiples of 70: 70, 140, 210, 280

Multiples of 140: 140, 280, 420

So the LCM for 70 and 140 is 140

Finding LCM for 70 and 140 by Prime Factorization

Another method to find LCM for numbers 70 and 140 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 70: 2, 5, 7 (exponent form: 21, 51, 71)

All Prime Factors of 140: 2, 2, 5, 7 (exponent form: 22, 51, 71)

22 × 51 × 71 = 140

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About "Least Common Multiple" Calculator

This calculator will help you find the Least Common Multiple (LCM) of two numbers. For example, it can help you find out what's the Least Common Multiple (LCM) of 70 and 140? (The answer is: 140). Select the first number (e.g. '70') and the second number (e.g. '140'). After that hit the 'Calculate' button.
Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers

"Least Common Multiple" Calculator

Least Common Multiple of

and

LCM Table

Number 1Number 2LCM
551401540
56140280
571407980
581404060
591408260
60140420
611408540
621404340
631401260
641402240
651401820
661404620
671409380
681402380
691409660
70140140
711409940
721402520
7314010220
741405180
751402100
761402660
771401540
781405460
7914011060
80140560
8114011340
821405740
8314011620
84140420

FAQ

What's the Least Common Multiple (LCM) of 70 and 140?

LCM of 70 and 140 is 140

How to find the LCM of 70 and 140 using prime factorization?

To find the LCM of 70 and 140, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 140.

What is the difference between LCM and GCF?

LCM (Least Common Multiple) is the smallest number divisible by both numbers, while GCF (Greatest Common Factor) is the largest number that divides both. For 70 and 140: LCM = 140, GCF = 70.

See Also