Question

Express each of the following numbers as a product of its prime factors

Answer 1

Step-by-step explanation:

Step 1 :

Put the given number inside the "L" shape

Step 2 :

We have to split the given number by prime numbers only. That is, always we have to put prime numbers out side the "L" shape.

Step 3 :

The tricks given below will be helpful to find the prime number which exactly divides the given number.

A number which ends with 0, 2, 4, 6 and 8 is divisible by the smallest prime number 2.

A number which ends with 0 or 5 is divisible by 5

If the sum of digits of the given number is a multiple of 3, then the given number is divisible by 3.

Step 4 :

Take the first digit of the given number and check how many times the prime number goes in to that.