GCF for 70 and 105

What is the Greatest common Divisor of 70 and 105?

Answer: GCF of 70 and 105 is 35

(Thirty-five)

Finding GCF for 70 and 105 using all factors (divisors) listing

The first method to find GCF for numbers 70 and 105 is to list all factors for both numbers and pick the highest common one:

All factors of 70: 1, 2, 5, 7, 10, 14, 35, 70

All factors of 105: 1, 3, 5, 7, 15, 21, 35, 105

So the Greatest Common Factor for 70 and 105 is 35

Finding GCF for 70 and 105 by Prime Factorization

The second method to find GCF for numbers 70 and 105 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 70: 2, 5, 7

All Prime Factors of 105: 3, 5, 7

As we can see there are Prime Factors common to both numbers: 5, 7

Now we need to multiply them to find GCF: 5 × 7 = 35

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About "Greatest Common Factor" Calculator

This calculator will help you find the greatest common factor (GCF) of two numbers. For example, it can help you find out what is the Greatest common Divisor of 70 and 105? (The answer is: 35). Select the first number (e.g. '70') and the second number (e.g. '105'). After that hit the 'Calculate' button.
Greatest Common Factor (GCF) also known as the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) - it is the largest positive integer that divides each of the integers with zero remainder

GCF Table

Number 1Number 2GCF
551055
561057
571053
581051
591051
60105
611051
621051
63105
641051
651055
661053
671051
681051
691053
70105
711051
721053
731051
741051
75105
761051
771057
781053
791051
801055
811053
821051
831051
84105

FAQ

What is the Greatest common Divisor of 70 and 105?

GCF of 70 and 105 is 35