. Express each of the following as the product of prime numbers
(a) 120
(b) 150 (C) 210
Answers
Answer:
a) 2*2*2*3*5
b) 2*3*5*5
c) 2*3*5*7
Step-by-step explanation:
a) You can first start by dividing 120 by 2. 120 divided by 2 is 60. You can divide that by 2 again. 60 divided by 2 is 30. You can divide by 2 one more time. 30 divided by 2 is 15. Then you can divide 15 by 3. 15 divided by 3 is 5. You can lastly divide 5 by 5 which results in 1. So you have 120=2*2*2*3*5
b) You can first start by dividing 150 by 2. 150 divided by 2 is 75. You can divide that by 3. 75 divided by 3 is 25. You can divide that by 5. 25 divided by 5 is 5. Then you can divide 5 by 5 again. 5 divided by 5 is 1 and you are done. So you have 150=2*3*5*5.
c) You can first start by dividing 210 by 2. 210 divided by 2 is 105. You can divide 105 by 3. 105 divided by 3 is 35. You can divide that by 5. 35 divided by 5 is 7. Lastly you can divide 7 by 7. 7 divided by 7 is 1. So you have 2*3*5*7.