Question

1.Find the prime factors by repeated division.
a. 54 b. 525
2. Test 87,49,258,1035 and 26130 for divisibility by 2,3,5 and 10.
3. Find the greatest 5 digit number that is divisible by 5.
4. Find all the numbers between 421 and 433 that are divisible by both 2 and 3.

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Answer 1

Hint: To find the prime factors, we will divide the number by the lowest prime number. We will repeat this until the number is no longer divisible by that number. Then we will divide it with the next prime number and repeat this process until the number is completely factored with all the factors as prime numbers

Answer 2

Hint: To find the prime factors, we will divide the number by the lowest prime number. We will repeat this until the number is no longer divisible by that number. Then we will divide it with the next prime number and repeat this process until the number is completely factored with all the factors as prime numbers