Help Wanted

Mr. Jensen needed to hire a mathematics tutor for his school. He placed an advertisement in the school newspaper. He wrote the ad in such a way as to attract the most qualified applicants.

MATH TUTOR NEEDED

10 hours per week

If interested please call:

ABC-DEF-GHIJ

Each digit of the telephone number is unique.

A, C, G, and H are prime numbers.

F, I, and J are square numbers.

B,D,E,F, and G are even numbers.

C is a factor of J.

A + D = E + J

What telephone number should interested applicants call?

Reference from Greenes, Carol, Linda Schulman, Rika Spungin, Suzanne Chapin, Carol Findell. Mathletics: Gold Metal Problems. Providence RI: Janson Publications Inc., 1990. p. 7.