Q: What are the prime factors of the number 751,641,156?

 A: 2, 3, 7, 151, 19753

Why are those the prime factors of the number 751,641,156?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 751,641,156

751,641,156
Factor Arrows
2375,820,578
Factor Arrows
2187,910,289
Factor Arrows
362,636,763
Factor Arrows
320,878,921
Factor Arrows
72,982,703
Factor Arrows
15119,753

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 151, 19753

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 151 x 19,753 = 751,641,156

This can also be written as 22 x 32 x 71 x 1511 x 19,7531 = 751,641,156

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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