ashleyyoon18 ashleyyoon18
  • 03-11-2020
  • Mathematics
contestada

Let an optimus prime be a prime number whose digit sum is also a prime number. How
many of the first 10 primes are optimus primes?

Respuesta :

AbyssSubZero
AbyssSubZero AbyssSubZero
  • 03-11-2020

Answer:

7

Step-by-step explanation:

2 = 2 ✓

3 = 3 ✓

5 = 5 ✓

7 = 7 ✓

11 = 1 + 1 = 2 ✓

13 = 1 + 3 = 4 ×

17 = 1 + 7 = 8 ×

19 = 1 + 9 = 10 ×

23 = 2 + 3 = 5 ✓

29 = 2 + 9 = 11 ✓

I hope this helps you :)

Answer Link

Otras preguntas

How is the numeral 35.012 written in words and why
Was the Gold Rush a good or bad thing for the United States?
When was World War I?
How is the numeral 35.012 written in words and why
If the speed of an object is tripled, its kinetic energy will be
When was William Shakespeare born
Rewrite the function c(x) =9(x+3) using the distributive property
Solving systems by elimination: 2x + 4y = -4 3x + 5y = -3 Please show me your work so I can do the rest myself. Thanks!
Does the depth of a pan affect how water freezes?
A pound of seedless red grapes costs $2.75. Drew must spend less than $9.35 on a bunch of seedless red grapes.Inequality:Solution:Interpretation: