Q: What are the prime factors of the number 1,420,200?

 A: 2, 3, 5, 263

Why are those the prime factors of the number 1,420,200?

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 1,420,200

1,420,200
Factor Arrows
2710,100
Factor Arrows
2355,050
Factor Arrows
2177,525
Factor Arrows
359,175
Factor Arrows
319,725
Factor Arrows
36,575
Factor Arrows
51,315
Factor Arrows
5263

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, 263

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 5 x 263 = 1,420,200

This can also be written as 23 x 33 x 52 x 2631 = 1,420,200

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


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