Q: What are the prime factors of the number 1,097,100?

 A: 2, 3, 5, 23, 53

Why are those the prime factors of the number 1,097,100?

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 1,097,100

1,097,100
Factor Arrows
2548,550
Factor Arrows
2274,275
Factor Arrows
391,425
Factor Arrows
330,475
Factor Arrows
56,095
Factor Arrows
51,219
Factor Arrows
2353

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, 23, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 5 x 23 x 53 = 1,097,100

This can also be written as 22 x 32 x 52 x 231 x 531 = 1,097,100

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


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