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find the prime factor

1)84
2)250
3)168
4)324
5)275
6)48
7)105
8)420
9)81
10)90​

Sagot :

KAntoineDoixidn

Answer:

  1. 84 = 2 • 2 • 3 • 7
  2. 250 = 2 • 5 • 5 • 5
  3. 168 = 2 • 2 • 2 • 3 • 7
  4. 324 = 2 • 2 • 3 • 3 • 3 • 3
  5. 275 = 5 • 5 • 11
  6. 48 = 2 • 2 • 2 • 2 • 3
  7. 105 = 3 • 5 • 7
  8. 420 = 2 • 2 • 3 • 5 • 7
  9. 81 = 3 • 3 • 3 • 3
  10. 90 = 2 • 3 • 3 • 5

Step-by-step explanation:

Divide the number by the lowest prime number divisible to it. Continue doing this until you get a prime number. All prime numbers used to divide the numbers are called the prime factors.

Example:

84 is divisible by 2, which is the lowest prime number. After that, you'll get 42, then divide again by 2, you'll get 21. This number can be divided 3 since it's the lowest prime number, after that, you'll get 7. Since 7 is a prime number, that would be your last prime factor. Thus, the prime factors for 84 is 2 • 2 • 3 • 7.

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