Q: What are the prime factors of the number 101,045,520?

 A: 2, 3, 5, 37, 3793

Why are those the prime factors of the number 101,045,520?

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 101,045,520

101,045,520
Factor Arrows
250,522,760
Factor Arrows
225,261,380
Factor Arrows
212,630,690
Factor Arrows
26,315,345
Factor Arrows
32,105,115
Factor Arrows
3701,705
Factor Arrows
5140,341
Factor Arrows
373,793

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, 5, 37, 3793

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 37 x 3,793 = 101,045,520

This can also be written as 24 x 32 x 51 x 371 x 3,7931 = 101,045,520

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


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