LCM for 8 and 1,000
What's the Least Common Multiple (LCM) of 8 and 1,000?
Answer
(One thousand)
Finding LCM for 8 and 1,000 using GCF of these numbers
The first method to find LCM for numbers 8 and 1,000 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:
LCM = (Number1 × Number2) ÷ GCF
GCF of numbers 8 and 1,000 is 8, so
LCM = (8 × 1,000) ÷ 8
LCM = 8,000 ÷ 8
LCM = 1,000
Finding LCM for 8 and 1,000 by Listing Multiples
The second method to find LCM for numbers 8 and 1,000 is to list out the common multiples for both numbers and pick the first one that matches:
Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248, 256, 264, 272, 280, 288, 296, 304, 312, 320, 328, 336, 344, 352, 360, 368, 376, 384, 392, 400, 408, 416, 424, 432, 440, 448, 456, 464, 472, 480, 488, 496, 504, 512, 520, 528, 536, 544, 552, 560, 568, 576, 584, 592, 600, 608, 616, 624, 632, 640, 648, 656, 664, 672, 680, 688, 696, 704, 712, 720, 728, 736, 744, 752, 760, 768, 776, 784, 792, 800, 808, 816, 824, 832, 840, 848, 856, 864, 872, 880, 888, 896, 904, 912, 920, 928, 936, 944, 952, 960, 968, 976, 984, 992, 1,000, 1,008, 1,016
Multiples of 1,000: 1,000, 2,000, 3,000
So the LCM for 8 and 1,000 is 1,000
Finding LCM for 8 and 1,000 by Prime Factorization
Another method to find LCM for numbers 8 and 1,000 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:
All Prime Factors of 8: 2, 2, 2 (exponent form: 23)
All Prime Factors of 1,000: 2, 2, 2, 5, 5, 5 (exponent form: 23, 53)
23 × 53 = 1,000
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See Also
- Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers

LCM Table
About "Least Common Multiple" Calculator
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